Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy states that the
velocity at which adistant object isreceding from theEarth (as measured by itsredshift ) is proportional to itsdistance ;observational evidence for anexpanding universe
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
After Edwin Powell Hubble, American astronomer
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